Chocolate Chip Cheese Ball

1 (8 oz) pkg cream cheese
1/2 cup butter (NOT margerine)
1/4 tsp vanilla
3/4 cup powder sugar
2 Tbsp brown sugar
3/4 cup mini semisweet choc chips
3/4 cup finely chopped pecans

Beat cheese, butter & vanilla till fluffy. Gradually add in sugars; beat till just combined. Stir in chips; cover & refridgerate 2 hours. Place cheese mixt in large plastic wrap. Shape into ball. Refridgerate another hour. Before serving roll into chopped pecans. Serve with graham crackers. Yields 1 ball.